S-97715A522 1/4"-20 x 1 1/8" Brass Button Head Hex-Drive Screws
Brass Button Head Hex-Drive Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance from high-quality brass construction, ideal for harsh industrial environments
- Exceptional thread reliability with Class 3A fit UNC coarse threading, ensuring secure fastening and vibration resistance
- High mechanical strength delivering 50,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Easy installation and removal with 5/32" hex drive and fully threaded design for maximum grip and efficiency
- Compliant with global regulations including RoHS 3 and REACH, meeting strict environmental and safety standards
- Rounded button head profile provides a smooth, finished appearance while reducing surface damage risks
- Right-hand coarse threading enables quick assembly and disassembly in various materials
Professional Applications & Engineering Value
Engineered for precision and durability, these 1/4"-20 UNC brass rounded head screws address critical industrial needs where corrosion resistance and high tensile strength are paramount. The brass material inherently resists oxidation and galvanic corrosion, making these hex drive screws ideal for electrical enclosures, marine hardware, and plumbing systems. The Class 3A thread fit and coarse UNC threading ensure tight tolerances and reliable performance in soft metals or plastics, preventing loosening under vibration. With a fully threaded design and 50,000 psi rating, they provide consistent clamping force across assemblies, reducing failure risks in industrial fastening applications while maintaining compliance with RoHS 3 and REACH standards.
Specification Summary & Compliance
This screw features precise 1/4"-20 UNC coarse threading with Class 3A thread fit for superior dimensional accuracy. Manufacturing adheres to inch system standards, with a rounded button head and 5/32" hex drive for consistent installation. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloys and meets REACH (EC 1907/2006) requirements, ensuring environmental and safety regulations are satisfied for industrial use.
